Google Classroom구글 클래스룸
GeoGebra지오지브라 클래스룸

Intersections Between Triangle and Parabola

The applet below shows a right triangle and a parabola. You can move the horizontal location of the parabola by moving the slider for "h". You can also show the intersections, by pushing "Show Intersections". Play around with this, then answer the question below.
Question: For what h values are there four intersections between the triangle and parabola?